Process for treating 9% nickel steel
    1.
    发明授权
    Process for treating 9% nickel steel 失效
    处理9%镍钢的工艺

    公开(公告)号:US3969158A

    公开(公告)日:1976-07-13

    申请号:US279521

    申请日:1972-08-10

    申请人: Albert S. Holbert

    发明人: Albert S. Holbert

    CPC分类号: C21D6/001

    摘要: A heat treatment of nine percent nickel steel including carburizing, double normalizing, tempering, subcooling and then tempering to provide a steel having useful mechanical properties at extremely low temperatures.

    摘要翻译: 包括渗碳,双重归一化,回火,过冷却然后回火的9%镍钢的热处理,以提供在极低温度下具有有用的机械性能的钢。